TREA

Willard B. Chellis

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  • Russell, KY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    AB freight valve test rack
    • Patent number 3,945,684
    • Issue date Mar 23, 1976
    • The Chesapeake and Ohio Railway Company
    • Willard B. Chellis
    • G01 - MEASURING TESTING